// Copyright 2016 PDFium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
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#include "core/fpdfapi/fpdf_page/include/cpdf_shadingobject.h"
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#include "core/fpdfapi/fpdf_page/cpdf_shadingpattern.h"
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#include "core/fpdfapi/fpdf_page/pageint.h"
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#include "core/fpdfapi/fpdf_parser/include/cpdf_document.h"
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CPDF_ShadingObject::CPDF_ShadingObject() : m_pShading(nullptr) {}
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CPDF_ShadingObject::~CPDF_ShadingObject() {}
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CPDF_ShadingObject* CPDF_ShadingObject::Clone() const {
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CPDF_ShadingObject* obj = new CPDF_ShadingObject;
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obj->CopyData(this);
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obj->m_pShading = m_pShading;
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if (obj->m_pShading && obj->m_pShading->document()) {
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CPDF_DocPageData* pDocPageData = obj->m_pShading->document()->GetPageData();
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CPDF_Pattern* pattern = pDocPageData->GetPattern(
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obj->m_pShading->GetShadingObject(), m_pShading->IsShadingObject(),
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obj->m_pShading->parent_matrix());
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obj->m_pShading = pattern ? pattern->AsShadingPattern() : nullptr;
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}
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obj->m_Matrix = m_Matrix;
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return obj;
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}
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CPDF_PageObject::Type CPDF_ShadingObject::GetType() const {
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return SHADING;
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}
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void CPDF_ShadingObject::Transform(const CFX_Matrix& matrix) {
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if (!m_ClipPath.IsNull()) {
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m_ClipPath.GetModify();
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m_ClipPath.Transform(matrix);
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}
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m_Matrix.Concat(matrix);
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if (!m_ClipPath.IsNull()) {
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CalcBoundingBox();
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} else {
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matrix.TransformRect(m_Left, m_Right, m_Top, m_Bottom);
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}
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}
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bool CPDF_ShadingObject::IsShading() const {
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return true;
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}
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CPDF_ShadingObject* CPDF_ShadingObject::AsShading() {
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return this;
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}
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const CPDF_ShadingObject* CPDF_ShadingObject::AsShading() const {
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return this;
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}
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void CPDF_ShadingObject::CalcBoundingBox() {
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if (m_ClipPath.IsNull()) {
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return;
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}
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CFX_FloatRect rect = m_ClipPath.GetClipBox();
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m_Left = rect.left;
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m_Bottom = rect.bottom;
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m_Right = rect.right;
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m_Top = rect.top;
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}
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